turbulence model

It will cost much time for numerical simulation of air distribution in train compartment using k-ε turbulence model, so zero equation turbulence model is used for simulating airflow in train compartment.

采用k-ε湍流模型对列车车厢内气流进行数值模拟需要消耗大量的计算时间，为此，提出了采用零方程湍流模型对列车车厢内的气流组织进行数值模拟；

The result show that realizable k-ε turbulence model can be used in the simulation of inlet whirlpool in hydraulic structures.

结果表明Realizable k-ε紊流模型可用于实际水工建筑物进水口漩涡的模拟。

A method for calculating 3 D discharge flow in a centrifugal impeller is developed by means of solving the incompressible steady time averaged N S equations, the continuity equation and the k ε turbulence model equation.

文发展了一种通过求解不可压缩、定常、时均N-S方程、连续性方程和k-ε湍流模型方程分析离心叶轮出口三维流场的方法。

The Baldwin-Lomax algebraic model is used for turbulence simulation.

湍流模拟采用了 Baldwin -Lomax代数模型.

Numerical Simulation of a Turbulence Flow in the Cut-off Valve by RNG k-ε Turbulence Model

用RNG k-ε紊流模型对截止阀三维紊流流动的数值模拟

Calculations and analyses are made on surface pressure, velocity distribution as well as aerodynamic resistance, using Computational Fluids Dynamics software CFX, 3D viscous incompressible Reynolds averaged Navier stokes equations and turbulence model k ε double equation.

运用流体动力学数值计算软件CFX，采用三维粘性不可压缩雷诺平均应力方程和k-ε双方程湍流模型，对200km/h电动旅客列车进行了表面压力、速度分布及空气阻力的计算分析。

A K-ε Two-Equation Turbulence Model for the Solid-Liquid Two-Phase Flow

固液两相流中的K－ε双方程湍流模式

It is shown that the RNG K-ε turbulence model is better than the traditional one.

结果表明，RNG k-ε湍流模型算得的结果比k-ε模型有所改进。

Using the RNG k-ε turbulence model and SIMPLE scheme based on unstructured grid system, 2-Dimensions and 3-Dimensions numerical simulations on a special self-reliant-like constant flux air valve was performed.

采用RNG k-ε湍流模型和非结构化网格SIMPLE方法，对自行设计的一种机械自力式恒流量风阀产品模型进行了二维和三维流动的数值分析；

Dynamic mesh model was used to simulate piston motion, k-ε turbulence model was used to predict the incompressible fluid flow in the cylinder.

液压缸缓冲过程流体流动的CFD模拟分析，使用动网格方法模拟活塞边界运动，k-ε湍流模型预测液压缸内不可压缩流体流动。

The k-ε two-equation turbulence model and arithmetic of SIMPLE are adopted to simulate the flow field.

采用k-ε两方程湍流模型及SIMPLE算法对二维平面射流和三维空调房间内的非等温浮力射流进行数值模拟。

Application of Zero Equation Turbulence Model for Numerical Simulation of Air Distribution in Train Compartment

零方程湍流模型在列车车厢内气流数值模拟中的应用

Based on Navier-Stokes equation and k-ε turbulence model, the flow field of centrifugal pump is calculated.

采用基于时均Navier-Stokes方程和标准k-ε紊流模型对得到的离心泵进行流场计算，并根据计算结果，对离心泵内部流场进行了分析；

The Baldwin Lomax turbulence model was used for high Reynolds number flows.

湍流计算采用了Baldwin-Lomax代数模型.

Calculations are based on time average Navier Stokes equations with a turbulence model being of Baldwin Lomax type.

计算基于时均N-S方程，湍流模型为Baldwin Lomax模型。

This paper compares the results of field tests and simulation, analyses the effects of turbulence model on temperature field and air distribution in subway system and draw the conclusion that the calculating results of two-equation are more accurate than those of zero equation.

本课题比较了现场测试结果与计算结果，分析了湍流模型的选择对整个地铁系统温度场、气流场的计算结果的影响，得到了双方程计算准确性优于零方程的结论。

The k-ε turbulence model, EBU turbulence combustion model, sixflux model of radiation, pressure staggered grid system are employed in computations.

本数值计算程序采用了k - ε双方程湍流模型, 旋涡破碎湍流燃烧模型, 六通量热辐射模型,采用了三维非正交曲线坐标系, 压力交错网格.

The RNG k-ε turbulence model has been applied to simulate turbulent flows in symmetrical planes and in three dimensions of curved inlet cut-off valves, and its performance is compared to the results measured by a particle image velocimetry ( PIV) in the experiments.

采用了RNG k-ε紊流模型和贴体坐标对截止阀对称面和三维流场进行了模拟，同时用粒子成像流速仪（PIV）对弯型截止阀对称面模型的测试结果和数值模拟结果进行了验证。

The two-fluid model was used for the two-phase flow. The standard k-ε turbulence model was employed. The average chemical reaction rate was approximated by the Eddy-Break-Up ( EBU) model.

两相流模型采用双流体模型，湍流模型采用标准k-ε模型，湍流燃烧采用涡旋破碎（EBU）模型，数值方法采用LEAGAP算法。

The characteristics of turbulence nearby the model shelterbelts

模型林带附近乱流特征的观测研究

A staggered finite volume upwind algorithm for solving the compressible NavierStokes equations and the K ω turbulence model equations has been developed.

提出了一种交错的有限体积迎风格式算法，用以联合求解NS方程与Kω湍流模型方程。

Baldwin-Lomax Turbulence model is applied to programming.

程序采用Baldwin-Lomax模型.

By the k ε turbulence model, the three dimension distributions of airflow field and temperature field in air conditioned train passenger compartment are simulated numerically.

运用k-ε紊流模型对空调硬座车内三维流场和温度场进行了数值模拟。

The mathematical simulation for the flow field in the vacuum chamber and ladle during RH degassing was carried out by the N S equation, k ε two equation turbulence model and two phases zone structure model.

应用N-S方程、k-ε双方程模型及两相区结构模型对RH真空室熔池和钢包内钢液流场进行数值计算，为进一步计算浓度场和温度场奠定了基础，并解释了一些工艺现象。

Numerical Simulation to the Wastewater's Side Discharges Using Nonlinear k-ε Turbulence Model

采用非线性k-e湍流模型的污水岸边排放数值模拟

He swirling oil-water two-phase turbulent flow in a hydrocyclone has been simulated by using the two-fluid model with a k-ε-kp two-phase turbulence model.

本文应用双流体模型及k－ε－kp两相湍流模型，研究了水力旋流器内油水两相湍流流场。

Baldwin-Lomax turbulence model is implemented in Navier-Stokes flow solver .

湍流计算采用了Baldwin -Lonax 代数紊流模型.

The flow field is calculated by using zero-equation turbulence model with boundary-fitted coordinate system.

采用贴体坐标及有限差分方法,用流函数 - 涡量为变量的零方程紊流模型求解流速声场.

The precision of the numerical simulation depends on the inlet and outlet boundary conditions as well as the turbulence model more than the grid refinement level and the grid type.

结果表明，相对于网格数目和网格类型，进、出口边界条件和湍流模型对计算和实验结果吻合的影响要大。

The unstructural grid, k-ε turbulence model and heat radiator model were applied to simulation for a unsteady axisymmetric flow field.

应用分区非结构化网格，进行了二维可压缩湍流流场的数值模拟，在数值计算中应用了kε湍流模型，并考虑壁面热辐射的辐射传热模型；